"new york times" op-ed they write silly things and they said, people should not live longer, you will lose purpose in life. i met a guy who said i am 69, if i make it to 75, i'll done, i've had it. don't you lose the edge? is there a natural cycle? >>guest: i think people tend to say that because they assume as you get older you also get ill but when that is the case, you do lose your lust for life but if you are healthy and energetic, there is so much more to do and you think about it, you never have enough time to do everything you want, do you? we need more time. >> there was a profile of the person, the billionaire who wrote the forward to your book, and it was silly, and a silly things they said was that this extending life is not a good idea because the technology will be available to rich people first and it will add to inequality. >>guest: that is a knee-jerk reaction but we hear that when you talk about any type of new technology. think when cell phones first came out. only the rich people had cell phones. yes, they were the size of a brick and you carried around in a briefca